GEOG 1101 Lecture Notes - Lecture 10: Supercooling, Supersaturation, Tor Bergeron

23 views2 pages

For unlimited access to Class Notes, a Class+ subscription is required.

DEW is water that has condensed onto objects near the ground when their Tºs
have fallen below the d.p.Tº of the surface air. In winter, however, this may
form solid forms of dew.
Frozen Dew refers to dew (in the liquid state) which has formed and then freezes (to the solid state).
water vapor to liquid to solid)
* Condensation occurs at a Tº above the freezing point, then the
temperature continues to drop below the freezing point & the dew
freezes. Condensation then freezing.
Frost or Hoarfrost is a covering of ice produced by deposition because the d.p.T is below freezing
* Water vapor changes directly to the solid state.
** Simplified process:
Rain: Water vapor condenses into liquid water droplets forming clouds.
These droplets coalesce (join together) and become heavy enough to be
pulled down by gravity as precipitation (a raindrop), if they do not
evaporate before they hit the ground.
H2OV ---------------------> liquid water ----------------------------> precip
* Cloud droplet average size is about 20 microns in diameter & fall
very slowly, about 1000 m/48 hrs. Thus they usually evaporate.
* 1 raindrop = about 1 million cloud droplets, so cloud droplets must
coalesce or join together into a raindrop to avoid evaporation.
find more resources at
find more resources at
Unlock document

This preview shows half of the first page of the document.
Unlock all 2 pages and 3 million more documents.

Already have an account? Log in

Get access

$10 USD/m
Billed $120 USD annually
Homework Help
Class Notes
Textbook Notes
40 Verified Answers
Study Guides
1 Booster Class
$8 USD/m
Billed $96 USD annually
Homework Help
Class Notes
Textbook Notes
30 Verified Answers
Study Guides
1 Booster Class